Idiopathic renal replacement lipomatosis: a rare renal pseudo tumor

Renal replacement lipomatosis (RRL) is a rare condition that occurs as an end result of renal atrophy or destruction of renal parenchyma by excessive lipomatous tissue in renal sinus and perinephric space. We report a case of RRL presenting as a right renal mass clinically. Intra-venous pyelography...

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Bibliographic Details
Published in:Journal of cancer research and therapeutics 2014-04, Vol.10 (2), p.428-430
Main Authors: Wahal, Shailja P, Mardi, Kavita
Format: Article
Language:English
Subjects:
Adult
Care and treatment
Case studies
Connective tissue tumors
Diagnosis
Female
Humans
Kidney - pathology
Kidney diseases
Kidney Diseases - diagnosis
Kidney Diseases - surgery
Lipomatosis - diagnosis
Lipomatosis - surgery
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Summary:Renal replacement lipomatosis (RRL) is a rare condition that occurs as an end result of renal atrophy or destruction of renal parenchyma by excessive lipomatous tissue in renal sinus and perinephric space. We report a case of RRL presenting as a right renal mass clinically. Intra-venous pyelography and renal scan revealed a left non-functioning kidney. A left nephrectomy was performed. After histopathological examination and extensive literature search, a diagnosis of RRL was given. In majority of cases, it is associated with renal calculi. Idiopathic variety is not common. It is a rare entity and the diagnosis may be missed due to lack of experience. It has to be differentiated from other fat-containing tumors such as renal lipoma, xanthogranulomatous pyelonephritis, angiomyolipoma and liposarcoma.
ISSN:0973-1482
1998-4138
DOI:10.4103/0973-1482.136680